Bearing



Nov. 20, 1928. 1,692,007

W. A. VAN BRUNT BEARING Filed June 29. 1922 Patented Nov. 20, 1928.

UNITED* s 'm'rnsv PATENT orifice.l

wrm-Ann A. van' Emme, @Los Anderes, @armenia assieme ie e een'.

EARINQ Application filed :une 29,

This invention relates to improvements in bearings that, while especially designed for use in connection with colters fo'r plows,y are adapted for use in other situations where the bearings are subjected to hard'usage and conseduently require adjustments fromt'ime to time to compensate for wear. The objects of my invention are to provide a construction that' will permit the required adjustments for compensating for wear between the rotating member and the bearing surface upon which itis mounted to be madereadily and quicklyg'to provide a reservoir for lubricant v between the rotatable member and the bearing therefor whereby the' bearing faces of` said two part-s will be .kept-lubricated; to provide for permanently locating the movable adjusting means in said reservoir, and to improve generally devices of this general character'. I accomplish these objects by the construction and arrangement of parts shown in the drawing and hereinafter particularly described; l

In the drapwingf-V i Fig. 1 isI a side elevation of a' plowfcolter connected as usual to a standard clamped to a'plow-beam; e

Fig. 2 is an" enlarged sectional view vtaken on the linen2`2 of Fig. 1 and illustrating my improvements; l Fig. 3 is 'detail'partly' in elevation and partly in section and illustrating the manner of adjusting the' bearing that the 'colter hub rests upon to compensate for wear between tlie bearing surfacesy o'f such parts;- a bar being shown asl inserted in the opening through which lubricant is inserted in the reservoir; and Fig. fis an' end view of the hubfand its bearing as seen from the side` oppositcto that shownV in Fig. l; the colter-fork'being removed and the bolt that secures the colter to the fork being shown in section. Referring to the several figures of the drawing-'eri indicates a portion of alplow beani,1to which is' clamped in any usual manner standardB.` Tothe lower end port-ion of the standard B is secured thev forward end of a forlnthe'v attachment of the foi-'lebe-Y ing such as -to permit it to have a limited swivelin'g actiomas' usual.'l The two arms ofthe forlglare indicated by 5J In the" rear end of each fork arm isarecessit,adaptedA toreceive Yand securely hold. againstk rotation the spindle upon which ths-rotating 1922. seriaino. 571,774.

member-which is here illustrated as a colter-Tis rotatably mounted. f To ,preventany rotative movement. of the spindle, the holes ,6j and the spindle ,ends that. project rthere.-

in'ner'p'o'rtion of each spindle member isv enlarged to respectively lform heads 7a and 8f3 ,the outer surfaces `of suchy 1heads beingrounded'orcurved as shown in FigtQ. Pro-l jecting centrally froniuthe enlargementnor head ofthe spindle member-8, is a stem 9 that extends towardthe Vmember 7 and,"i1i

the construction shown, proiects into' an annular recess -l0,forrn`ed in the; inner face of the head of said member TheV stem 9is exteriorally screw-threaded, and screwed thereupon is a nut- Vllrwhich at one end is beveled,Y and Isuch beveled portion fits against a corresponding bevel of the Wall of the recess-,10m theyheadof the spindle mem'v er 7. Thel engagement of these two bevelled or conical surfaces aids maintaining proper a-linement betweenr the two conical bearing members 7 and 8. Projecting from the surface of the nut are a numberoflugs 12 that are `madeY use of in Vscrewing the nut along the threaded stem 9j,v as will kbe hereinafter explained, and while three-areshown,

any 4desired .number may be employedffone indeed beingsufficient, as will bebett'er understoodpwhen the manner of adjusting the nut is 1 described. vThe spindle, is held in place between thefork arms 5 by a bolt thatpasses throughl such `fork armsl and through' the, spindle membersjE asl clearly shown inFig--. 2,the.head of the bolt lying against theouter face of one of the fork arms and the other end portion ofthe bolt beingjscrewi-threaded to receive anut 145 that is tightened up *against :the other fork arm'. l5 indicates aplow-colterhlaving a llarge central opening therethrough'for'the passage of the Spind1e. The eener@ is lmaaien mountedupon the two members of thespindle by' means ofahub,` whichis here shown as formed in tva-parts 16' and. 17, lying @Ii @P- positejsides of the colter, such two parts :of thehjub beinggsecured{together and tothe colter by rivets'lS. These hub parts have conical inner bea-ring faces shaped to correesV spondto the clnvature of the spindle members, and the contacting faces of the spindle members and hub parts will be chilled, smooth surfaces so as to permit of the rotation of the colter disc with the minimum of friction. It is necessary, or at least highly desirable, that the wearing surfaces be kept constantlylubricated, and a reservoir or chamber for containing a comparatively. large amount of grease or liquid lubricant is provid-ed hetween the spindle members, from which reservoir or chamber the lubricant can pass to the contacting surfaces of the spindle and hub. Thi s reservoir or cham-ber is indicated by 19. Thelilling opening for this reservoir is through oneof the hub parts-the part 16 in the construction shown-and is indicated by 20. It is screw-threaded to receive a screw# threaded plug 21 which normally closes it. In order to prevent leakage as far as possible at the joint between the hubfparts, I provide onev of such hub parts on its inner face with an annular recess in which is seated a gasket 22, and into this annularl recess and resting against said gasket is anannular projection 23 that is formed on the other hub part.

I/Jith the parts' eonstructedfand arranged as shown in Fig. 2, it will be evident that the curved faces ofthe spindle members will furnish an approximately perfect bearing for thecomplementary surfaces of the hub parts that -bear thereon, and that such bearing sur faces will be kept lubricated by the lubricant that slowly escapes fromithe quantity in the central reservoir 19. When, however, wear develops sufficiently to make it desirable to readj ust the spindle members with respect to the hub parts that bear 4Vhereon, the closure plug/21 will be removed and throughl the opening 20 willr be inserted a rod or bar a, such rod or bar being inserted far enoughso as to be brought into contact with one of t-he lugs 12 if the colter and its attached hubbe rotated. To make an adjustment between thel bearing surfaces, the operator will, after first partially unscrewing the nut 14 on the bolt 13, turn the colter, and as the yrod or bar a that has beeny inserted through the hole 20, as stated, comes inlcontact with one of the lugs 12 on thenut 11, the result willl be to turn such nut, and, inasmuch as the spindle .members are held against rotation, the effect will be to force suchv spindle members out` wardly,-the yoke arms yielding under this pressure su'fliciently to permit'such. movement of the spindle members. Owing to the curvature of the wearing faces, it will be evident that a comparatively slight endwise movement of the members 7 and Sis kall that will be required to bring the parts into new rela tive positions, and thus compensate for the wear that has occurred. After the desired adjustment has been made the nut 14: will again'be/tightened up. While a 'single lug 12 could be provided for the nut 11, yet I prefer to provide a number of them,'so that in making' the adjustment described it will notbe necessary to rotate the colter sufficiently far to cause the lubricant in `the reservoir or chamber 19 to `escape through the opening 20. "i

By my invention I provide an eiiicient bearingfor devices of the character specified, and one capable of carrying a comparatively large amount of lubricant, so as to insure the wearing surfaces being properly lubricatedat all times, and also a construction that permits' at any time the required adjustment of the` bearing members in such Vmanner as to compensate for wear.

I/Vhile,as stated, the invention is fof partieular value in connection with a plowcolter, inasmuch as bearings for such devicesl are always subjected to severe` treatment by reason ofthe implement working in dirt and trash, yet,v in its broaderv aspects, the inven tion is applicable to any .other situations -in-V `volving a rotating member where it is" desirable that means be provided for adjust# ments from time totime to compensate for the wear .that occurs between such member andthe bearing upon which it is mounted.

4That I claim as my invention and desire to secureby LettersfPatent, is

1. In combinatioma bearing spindle. comprising two endwise-movable non-rotating members each havmg its inner endportion enlarged to form a head, said heads `being spaced apart to form a reservoir for lubricana heads and extending over and formingV cover for said reservoir, and a nut `located Yin said reservoir and rotatably connected with one of said members and bearing against the other member and adapted when turned to force said members in opposite directions.

Y 3. In combination, a bearing spindlecomprising 'two endwise-movable non-rotating members each Vhaving its inner portion en,- larged 'to form ahead, said heads Vbeing spaced apart to form ay reservoir for lub-ricant, a stem carried'byone of said members ,j and projecting through saidreservoir toward the said other member, means mounted on said stem and in contact withsaid other member adapted by being moved to forceV said members in opposite directions, and ia rotatable device mounted on said heads and extending over and forming a cover for said reservoir.

4. In combination, a bearing spindle comprising two endwise-movable non-rotating members spaced a distance apart to form a reservoir for lubricant between them, a rotatable device supported on said members and forming a cover for said reservoir, and means within said reservoir and accessible through an opening in the wall ofsaid rotatable device for simultaneously forcing said nonrotating members in opposite directions.

In combination, a rotatable device, a bearing spindle comprising two endwisemovable members upon which said device is mounted, means supporting the outer ends of said members and holding such members against rotation, a bolt extending through said members and the said supporting means, other means interposed between said members for forcing them and the supporting means in opposite directions, and a nut on said bolt for holding said parts locked in different adjusted positions.

6. In combination, a rotatable device, a bearing spindle comprising two endwisemovable members upon which said device is mounted, means supporting the outer ends of said members and holding such members against rotation, a stem connected centrally with one of said members and'extending toward the other member, a nut rotatably mounted on said stem and bearing against said other member and adapted when rotated to force said two members and their supporting` means in opposite directions, a bolt passing through the said members, the stem and the supporting means, and a nut on said bolt for holding said parts locked in different f adjusted positions. l

7. In combination, a bearing spindle comprising two coaxially disposed conical bearing members, two spaced supporting arms having non-circular sockets in the inner faces thereof, said bearing members having noncircular end portions engaging non-rotatably in said sockets, a bolt passing through said bearing members and said armsv for drawing the same into cooperative engagement, one of said bearing members having an axially arranged, screw-threadedstem projecting toward the other member, a nut screwed upon said stem and adapted to vforce ing surface engaging a cooperating conical thrusting surface on the other bearing member, and a rotatable device having a hub adapted to bear upon theV conical outer surfaces of said bearing members.

8. In combination, a bearing spindle com'- prising two coaxially disposed conical bearing members, two spaced supporting arms on the outer sides of said bearing members, a bolt passing through saidbearing members and said arms, one of said bearing members having an axially arranged, screw-threaded stem formed integral therewith and projecting toward the other bearing member, a nut screwed upon said stem and adapted to force said bearing members outwardly away from each other, said nut having a conical thrusting surface engaging a cooperating conical thrusting surface on the other bearing member, said conical thrusting surfaces aiding to maintain aline-nient between said bearing members, and a rotatable device having a hub adapted to bear upon the conical outer surfaces of said bearing members.

9. Incombination, a bearing spindle-comprising two endwise-movable bearing members, each having its inner portion enlarged to form a head, said heads being spaced apart f to form a'reservoir for lubricant, two spaced supporting arms having non-circularsockets therein, said bearing members having noncircular outer `end portions engaging nonrotatably in said sockets, Va bolt `passing through said bearing members and said arms for drawing the same into cooperative engagement, one of said bearing members having an axially arranged-screw threaded stem projecting through said reservoir toward the other of said bearing members, a nut screwed upon said stem and adapted to force said bearing members outwardly away from each other, said nut having a conical thrusting surface engaging a cooperating conical thrusting surface on said other bearing member, said conical thrusting surfaces aiding to maintain alinement between said bearing members, and a rotatable device mounted on said bearing heads and extending over and forming a cover forl said reservoir.

WILLARD A. VAN BRUNT. 

